Interreg South Baltic Programme - Calls for Proposals

Enriched EU · Found: 2026-03-11 12:15

EU cross-border programme for South Baltic region promoting sustainability and circular economy. Has funded BLASTIC (EUR 1M+ for ocean-bound plastic waste) and ReCircWater projects. Regular calls for proposals on marine litter and plastic waste.

Source: https://southbaltic.eu/for-applicants/calls-for-proposals

Funding Details

Funder

Interreg South Baltic Programme (EU / Joint Secretariat)

Funding Goal

Cross-border cooperation in the South Baltic region covering green energy transition, sustainable water use, circular economy, sustainable tourism, and capacity-building for civil society actors in Poland, Germany, Denmark, Sweden, and Lithuania.

Funding Amount

6th call: Measure 1.1 allocation EUR 1,264,674.99 ERDF + Measure 4.1 EUR 776,297.42 ERDF (indicative). 4th SSP call: EUR 320,000 ERDF (indicative). Previous calls ranged up to EUR 31M per round.

Deadline

6th call for proposals: 16 September – 4 November 2026 (Measures 1.1 and 4.1 only). 4th Small-scale project call: same window (Measure 4.1, EUR 320K ERDF indicative). Note: Measure 2.3 (circular/resource efficiency) and Measure 2.2 (water) not included in 6th call. (periodic)

How to Apply

Applications submitted electronically via the CST2021 system (cst2021.gov.pl) during defined call windows. Calls open approximately twice per year and are announced on the programme website. Decision on call timing made by the Monitoring Committee.

Target Region

South Baltic region: coastal areas of Poland, Germany (Mecklenburg-Vorpommern), Denmark, Sweden (Blekinge, Skåne, Kronoberg), Lithuania

Contact

Email: southbaltic@southbaltic.eu | Phone: +48 58 746 38 55 | Address: Plac Porozumienia Gdańskiego 1 (Office 121), 80-864 Gdańsk, Poland (Joint Secretariat)

Last Checked

2026-04-20 10:33

Application Checklist

Eligibility

• Form a cross-border partnership with organisations from at least two eligible South Baltic countries (Poland, Germany, Denmark, Sweden, Lithuania)
• Ensure all project activities take place within the eligible South Baltic programme area (specific NUTS regions)

Project Scope

• Demonstrate that your project clearly addresses one of the seven Programme Measures (e.g. Measure 2.2 water, 2.3 circular economy, 4.1 civil society)
• Project must show measurable cross-border impact — purely local or national projects are not eligible

Required Documents

• Submit application via the CST2021 online system (cst2021.gov.pl) within the defined call window
• Prepare full project application including budget, work plan, and cross-border added value justification

Constraints

• Monitor programme website for call announcements — calls open approximately twice per year for ~6–10 week windows

Summary

The Interreg South Baltic Programme 2021–2027 is an EU-funded cross-border cooperation programme covering the coastal areas of Poland, Germany (Mecklenburg-Vorpommern), Denmark, Sweden (Blekinge, Skåne, Kronoberg), and Lithuania. It issues competitive calls for proposals approximately twice a year, supporting projects across seven thematic measures ranging from digitalisation and green energy to circular economy and sustainable tourism. The programme is co-funded by the European Regional Development Fund (ERDF). Relevant thematic measures include Measure 2.2 (Promoting sustainable use of water), Measure 2.3 (Supporting a circular and more resource-efficient development), and Measure 4.1 (Strengthening cooperation capacity including civil society). The programme has a proven track record of funding environmental projects in the Baltic Sea region, including the BLASTIC project (EUR 1M+) targeting ocean-bound plastic waste and the ReCircWater project on water circularity. Calls are competitive and each call is open for a defined window — typically 6–10 weeks. The 5th regular call and 3rd small-scale projects call (both closed November 2025) had total allocations of EUR 12.5M and EUR 0.8M respectively. Future calls are expected through 2027. Small-scale project calls are particularly accessible for smaller organisations with lower resource requirements. Applicants must form cross-border partnerships involving partners from at least two eligible South Baltic countries. Civil society organisations and NGOs are explicitly eligible, especially under Measure 4.1. Projects must demonstrate cross-border added value and align tightly with a specific Programme Measure.

Historical Context

Programme period 2021–2027. As of March 2026, five regular calls and three small-scale project calls have been issued. BLASTIC (ocean-bound plastic waste) and ReCircWater are among previously funded projects. Previous regular call allocations ranged from EUR 12.5M (5th call) to EUR 31M (3rd call). Calls have occurred roughly every 6 months.

Why it was added

Directly funds plastic waste collection, reuse and recycling projects in South Baltic region

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